Joseph e



(No Model.)

J. E. BOHNER;

LAMP BURNER.

Patented July 28, 1891.

Jftaz my me norms PETERS ca., vmmmrmo. WASHINGYUN, n. c.

. 25 the same closely.

UNITED STATES PATENT OFFICE.

JOSEPH E. BOHNER, OF ANSONIA, CONNECTICUT, ASSIGNOR TO W'ALLACE &

' SONS, OF SAME PLACE.

LAM P-BURN ER.

SPECIFICATION forming part of Letters Patent No. 456,881, dated July 28,1891..

Application filed December 22, 1890- Serial No.375,436. (N modelfl Toall whom tt may concern:

Be it known that I, JOSEPH E. BOHNER, of Ansonia, in the county ofNewHaven and State of Connecticut, have invented certain new and usefulImprovements in Lamp-Burners, of which the following is a specification,reference being had to the aocom panyin g drawings.

The present invention relates to that class of lamp-burners in which acylindrical wick- Io tube is used, the wick being tubular or surroundingsuch wick-tube, and there being a Wick carrier or sleeve for raising andlowering the wick, which is operated from one side of the carrier.

r 5 The invention is particularly applicable to central-draft burners inwhich the wick-carrier is tubular in form and is elevated and lowered bya pinion meshing in a rack formed in or attached to the carrier. In suchburr- 2o ers, it will be understood, the wick-surface in contact withthe exterior surface of the inner wick-tube is of considerable extent,so much so that the wick could not be readily moved up or down on theinner tube if it were to fit The necessary looseness of the wick on thiswick-tube, however, also produces a corresponding freedom of thewickcarrier relative to and on the wick-tube, and where the wick-carrieris operated by its rack 0 and pinion on one side or along one line ofits vertical length there is a tendency of the carrier to tip or careenslightly to and from the wick-tube. This manifestly results in anunequal elevation or lowering of the burn- 3 5 ing edge of the wick,which produces an irregular flame.

. tion to overcome this difficulty and to provide a new and improvedcarrier for a tubular wick that may be moved parallel to the wicktube,so that the upper end of the wick shall be evenly presented to theflame.

Heretofore it has been proposed to variously guide wick-carriers bymeans independent of or employed in conjunction with the wicktube,particularly as shown in United States Patent No. 439,718, of Novemberi, 1890, granted to me. I The particular object of the presentinvention, however, is to so construct or form the wick-carrier itselfthat its move ment on the wick-tube will be uniform for all parts of theburning edge of the wick.

It is the purpose of my inven- Accordingly my invention consists of alamp-burner having a cylindrical wick-tube and wick-adj usting sleeve orcarrier surrounding the same, which carrier is provided with one or moreribs or ridges running lengthwise of the sleeve and projecting inwardlyfrom the inner surface of the same toward the wick-tube, the ridges ofthe ribs being perforated.

it My invention further has for its object to prevent undue upwardmovement of the wick above the end of the wick-tube, as at the time oflighting the Wick, when it is not unusual for the wick to be turned upso high that an excess of flame occurs which smokes and soils thechimney, and many times the wick-carrier rack is run off its pinion andout of adjustment thereto or otherwise rendered incapable of promptlylowering the wick.

This feature of invention consists in coning or turning radially inwardthe upper end of the outer cylindrical wick-tube, so that it projectsinto the path of the wick-carrier, and thereby prevents it moving upWardly beyond the ends of the inner and outer wick-tubes.

In the drawings, Figure l is a central sectional View of a lamp-burnerembodying my improvement. Fig.2 is a plan view of the same, the partsabove the planeirm being cut away. Fig. 3 is a detail perspective viewof the wick-carrier or wick-adjusting sleeve.

Referringto the drawings in det-aiLA represents the exterior main bodyparts of the burner; B, the inner wick-tube; C, the outer wick-tube; D,the wick or wick-space between the tubes B and C; -E, the central-draftpassage; F, the flame-deflector; G, the wick-carrier; H, the rackthereon, and I the pinion 0 for elevating and lowering the wick-carrier.These parts and their construction and relation to each other are ingeneral the same as found in burners now well known to the art. Theirspecific features are as follows:

Upon the inner face of the wick-carrier G, and running lengthwise withit, are the ribs or ridges J. These ribs are produced by thin strips ofmetal K. bent into the desired form with a longitudinally perforatedangular I00 ridge J and properly secured to the carrier; but these ribsmay obviously be produced with such tube.

in other ways and forms. Preferably there are two of these rib-stripsextending thefull length of the carrier, one being located over thepinion-rack H and the other being located diametrically oppositethereto. These ribs projectfrom the inner face of the wickcarriertoward, but not quite to, the inner wick-tube, as best seen in Fig. 2.By these means, with the wick in place on the carrier and between thewick-tubes, the ribs on the carrier are embedded in the wick and closelypress the same along two diametrically-opposite vertical lines firmlyupon the inner tube. It will therefore be seen that the carrier has afirm bearing on opposite sides of the inner wick-tube, and hence thatthis sleeve when moved on the inner tube by the rack and pinion willhavea direction parallel This counteracts the tendency of the pinion totip the carrier and insures the regular presentation of the burning edgeof the wick to the flame, and by reason of the edge-like or angular formof I the ribs there is no undesirable addition to the resistance of thewick on the inner tube. On the contrary, the wick moves more smoothly onthe inner tube than in casse where ithas been attempted to direct thecarrier by guides confining or bracing it against .the tipping action ofthe rack and pinion. The perforating of these ribs along their ridgesprevents the corrugations choking the wick to any undesirable extent, sothat it will not freely conduct the oil; also, the perforations make theridges of the ribs to bear on the wick practically by a series or lineof points, and therefore they not only hold the wick secu rely, but theymay be adjusted more closely to the wick-tube than if they were notperforated, which close adj ustmentfurther insures against the tiltingor irregular movement of the carrier on the wick-tube.

I have shown at J the common form of inwardly-proj ectin g verticalribs, which are pro- ;duced by bending up the metal of the wickcarrierinto plain corrugations. These ribs act to give such elasticity to thecarrier as will compensate for the expansion and contraction of thesame, due to the effects of the heat of the flame. It is to be notedthat the strip K covers the rack of the carrier, which prevents the wickgetting into the rack and in any way clogging the pinion; also that thestrip holds the rack up to the pinion, so that their engagement iscertain and their action easy and smooth.

L represents the upper inturned or coned end of the outer wick-tube. Theupper edge of this wick inclines radially toward the inner tube asufficient distance to stop the wickcarrier if raised up to it. Thisprevents the wick being raised too high for lighting or otherwise, asalso the running of the carrierrack off its operating-pinion. Thisinclined or shouldered end edge of this tube also stiffens the end ofthe tube and prevents it being distorted or warped under the action ofthe heat of the flame.

What is claimed as new is 1. The combination, in a lamp-burner, ofawick-tube and a wick-carrier surrounding the same, which is providedwith inwardly-projecting perforated ribs running lengthwise of the same,substantially as and for the purpose set forth.

2. The combination, in a lamp-burner, of a wick -tube and a wick-carriersurrounding the tube and provided with one or more ribs runninglengthwise of the same and projecting from the inner surface of thecarrier toward the wick-tube, the ridges of the ribs being perforated,substantially as and for the purpose set forth.

3. The combination, in a lamp-burner, of a wick-tube, a wick-carrier G,surrounding the same, and a strip K, secured to the inner face of thecarrier over the rack H, with its rib J projecting toward thewick-sleeve, substantially as and for the purpose set forth.

4. In a lamp-burner, an inner wick-tube, a wick-carrier surrounding thesame, and an outer wick-tube provided with an inturning upper edge L,projectinginto the path of and for limiting the upward movement of thewick-carrier, substantially as and for the purpose set forth.

JOSEPH E. BOHNER.

Witnesses:

FRED. L. GAYLORD, E. E. TRUMPLOUR.

